Monitoring Relays

Monitoring relays are a type of relay that trips a circuit breaker when a fault is detected. A relay is an electrically controlled switch that is used to turn the power on or off in a circuit. 




Monitoring relays are more sophisticated than regular relays, as they have adjustable operating conditions, whereas normal relays switch according to a fixed threshold. They measure a given parameter, such as voltage or temperature, and will trip a circuit breaker when the parameter gets too high or low. 




What are monitoring relays used for?


Monitoring relays have a wide range of uses, depending largely on the factor being monitored. For example, they can protect against overcurrent if measuring current, or they can detect an abnormally low frequency if frequency is being measured.




Types of monitoring relay


The main way in which monitoring relays differ is the function that they measure. This can be a number of things, including:



  • voltage

  • current

  • temperature

  • frequency


The factor that you need to measure will decide which monitoring relay you choose.


...
Lees meer Lees minder

Filters

1 - 20 van 46 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs Monitoring Application Supply Voltage Contact Configuration Voltage Sensitivity Electrical Phase Voltage Sensing Range Current Sensitivity Minimum Current Sensed Maximum Current Sensed Phase Sensitivity Time Delay Temperature Sensitivity Temperature Sensing Range Frequency Sensing Range
RS-stocknr. 131-791
FabrikantnummerZ-TN230/SS
FabrikantEaton
52,85 €
Each
Aantal stuks
- 230 V ac DPST - - - - - - - - - - 50 Hz
RS-stocknr. 102-6146
Fabrikantnummer134235
FabrikantEaton
276,35 €
Each
Aantal stuks
Phase, Voltage 350 → 580 V ac DPDT Overvoltage, Undervoltage 3 450 → 570 (Undervoltage) V ac, 480 → 580 (Overvoltage) V ac - - - - 0.1 → 30 s - - -
RS-stocknr. 102-6147
Fabrikantnummer221789
FabrikantEaton
110,50 €
Each
Aantal stuks
Liquid Level 220 → 240 V ac SPDT - 1 - - - - - 250 ms - - -
RS-stocknr. 179-3521
FabrikantnummerEMR6-N1000-N-1
FabrikantEaton
97,70 €
Each
Aantal stuks
Level 110 → 130 V ac, 220 → 240 V ac - - - - - - - - - - - -
RS-stocknr. 179-3553
FabrikantnummerEMR6-VM600-A-1
FabrikantEaton
201,50 €
Each
Aantal stuks
Voltage 24 → 240 V ac/dc - - 1 24 → 240 V ac/dc - - - - 0.1 → 30 s - - -
RS-stocknr. 179-3522
FabrikantnummerEMR6-N1000-A-1
FabrikantEaton
139,10 €
Each
Aantal stuks
Level 24 → 240 V ac/dc - - - - - - - - 0.1 → 30 s - - -
RS-stocknr. 179-3532
FabrikantnummerEMR6-AWM720-I-1
FabrikantEaton
236,70 €
Each
Aantal stuks
Phase, Voltage 450 → 720 V ac - - - 450 → 720 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3546
FabrikantnummerEMR6-W400-M-1
FabrikantEaton
145,30 €
Each
Aantal stuks
Phase, Voltage 400 V ac - - - - - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3554
FabrikantnummerEMR6-VF600-A-1
FabrikantEaton
201,50 €
Each
Aantal stuks
Voltage 24 → 240 V ac/dc - - 1 24 → 240 V ac/dc - - - - 0.1 → 30 s - - -
RS-stocknr. 179-3527
FabrikantnummerEMR6-A300-C-1
FabrikantEaton
167,20 €
Each
Aantal stuks
Phase, Voltage 160 → 300 V ac - - - 160 → 300 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3524
FabrikantnummerEMR6-N100-N-1
FabrikantEaton
95,10 €
Each
Aantal stuks
Level 110 → 130 V ac, 220 → 240 V ac - - - - - - - - - - - -
RS-stocknr. 102-6144
FabrikantnummerEMR5-AWN280-1-F
FabrikantEaton
220,11 €
Each
Aantal stuks
Phase, Voltage 180 → 280 V ac DPST Overvoltage, Undervoltage 3 180 → 220 (Undervoltage) V ac, 240 → 280 (Overvoltage) V ac - - - - 0.1 → 30 s - - -
RS-stocknr. 179-3537
FabrikantnummerEMR6-AWN500-D-1
FabrikantEaton
211,20 €
Each
Aantal stuks
Phase, Voltage 300 → 500 V ac - - - 300 → 500 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3535
FabrikantnummerEMR6-AWN280-K-1
FabrikantEaton
215,60 €
Each
Aantal stuks
Phase, Voltage 180 → 280 V ac - - - 180 → 280 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3519
FabrikantnummerEMR6-I15-A-1
FabrikantEaton
190,10 €
Each
Aantal stuks
Current 24 → 240 V ac/dc - - 1 - - 0.3 A, 1 A, 3 A 1.5 A, 5 A, 15 A - 0.1 → 30 s - - -
RS-stocknr. 179-3533
FabrikantnummerEMR6-AWM820-J-1
FabrikantEaton
236,70 €
Each
Aantal stuks
Phase, Voltage 530 → 820 V ac - - - 530 → 820 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3541
FabrikantnummerEMR6-R400-A-2
FabrikantEaton
485,90 €
Each
Aantal stuks
Insulation 24 → 240 V ac/dc - - - 0 → 400 V ac - - - - - - - -
RS-stocknr. 179-3547
FabrikantnummerEMR6-W500-D-1
FabrikantEaton
178,70 €
Each
Aantal stuks
Phase, Voltage 300 → 500 V ac - - - 300 → 500 V ac - - - - 0.1 → 30 s - - 50 → 60 Hz
RS-stocknr. 179-3525
FabrikantnummerEMR6-PH22
FabrikantEaton
9,20 €
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 179-3516
FabrikantnummerEMR6-F500-G-1
FabrikantEaton
94,20 €
Each
Aantal stuks
Phase, Voltage 200 → 500 V ac - - - 200 → 500 V ac - - - - - - - 50 → 60 Hz